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US 2026/0140472 A1Published application
Sheet processing apparatus and image forming system
AssigneeCanon Kabushiki Kaisha
InventorSEIJI YOKOYAMA
Life of this patent
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Abstract
A booklet generation apparatus capable of generating a booklet without contaminating a layered booklet. In a case where a determination unit determines that there is an image in a region of a front cover of the (k+1)th booklet or a rear cover of the k-th booklet that is to be heated and pressurized by the bonding unit, a conveyance unit is caused to convey a sheet bundle without including a sheet to be included in the (k+1)th booklet from the forming unit to the stacking unit.
Claims20
An apparatus comprising:
- a forming unit configured to receive a sheet one by one and form a sheet bundle consisting of a maximum of N sheets;
- a conveyance unit configured to convey the sheet bundle upon completion of sheet bundle formation;
- a stacking unit configured to stack the conveyed sheet bundle;
- a bonding unit configured to generate a booklet consisting of M sheets by heating and pressurizing an adhesion portion each time the sheet bundle is stacked on the stacking unit;
- a discharge unit configured to discharge, upon completion of generation of L booklets at the stacking unit, the L booklets from the stacking unit;
- a control unit configured to control the forming unit, the conveyance unit, the stacking unit, the bonding unit, and the discharge unit;
- and
- a determination unit configured to determine whether there is an image in a region of a front cover of a booklet or a rear cover of a booklet that is to be heated and pressurized by the bonding unit,
- wherein the forming unit generates a sheet bundle consisting of N sheets including an M-th sheet to be included in a k-th booklet and a first sheet to be included in a (k+1)th booklet,
- wherein the bonding unit bonds a preceding sheet and a subsequent sheet stacked on the stacking unit, excluding the M-th sheet to be included in the k-th booklet and the first sheet to be included in the (k+1)th booklet, and
- wherein the control unit counts a number i of sheets layered at the forming unit,
- wherein in a case where the determination unit determines that there is no image in a region of a front cover of the (k+1)th booklet or a rear cover of the k-th booklet that is to be heated and pressurized by the bonding unit, if i reaches N, the control unit causes the conveyance unit to convey the sheet bundle from the forming unit to the stacking unit, and
- wherein in a case where the determination unit determines that there is an image in the region of the front cover of the (k+1)th booklet or the rear cover of the k-th booklet that is to be heated and pressurized by the bonding unit, even if i is less than N, the control unit causes the conveyance unit to convey the sheet bundle without including a sheet to be included in the (k+1)th booklet from the forming unit to the stacking unit.
10 more elements
An apparatus comprising:
- a layering unit configured to form a sheet bundle by layering a plurality of sheets and temporarily hold the sheet bundle;
- a conveyance unit configured to convey the sheet bundle held by the layering unit;
- a stacking unit configured to stack one or more sheet bundles conveyed by the conveyance unit;
- a bonding unit configured to generate a booklet by bonding one or more sheet bundles stacked on the stacking unit;
- a discharge unit configured to discharge the booklet from the stacking unit;
- a control unit configured to control the number of sheets included in each sheet bundle formed by the layering unit and the discharge of the booklet from the discharge unit;
- and
- a determination unit configured to determine whether there is an image in a region of a front cover of a booklet or a rear cover of a booklet that is to be heated and pressurized by the bonding unit,
- wherein in a case where the number of sheets layered by the layering unit is less than a predetermined number, the control unit causes the layering unit to continue the sheet layering process, and
- wherein in a case where the determination unit determines that there is an image in the region of the front cover of the booklet or the rear cover of the booklet that is to be heated and pressurized by the bonding unit, even if the number of layered sheets is less than the predetermined number, the control unit causes the conveyance unit to convey the sheet bundle from the layering unit to the stacking unit to prevent the sheet with the image from being layered on a sheet of another booklet.
7 more elements
A system comprising:
- a forming apparatus configured to form an image on a sheet;
- and
- a processing apparatus connected to the forming apparatus,
- the processing apparatus comprising:
- a forming unit configured to receive a sheet one by one and form a sheet bundle consisting of a maximum of N sheets;
- a conveyance unit configured to convey the sheet bundle upon completion of sheet bundle formation;
- a stacking unit configured to stack the sheet bundle conveyed by the conveyance unit;
- a bonding unit configured to generate a booklet consisting of M sheets by heating and pressurizing an adhesion portion each time the sheet bundle is stacked on the stacking unit;
- a discharge unit configured to discharge, upon completion of generation of L booklets at the stacking unit, the L booklets from the stacking unit;
- a control unit configured to control the forming unit, the conveyance unit, the stacking unit, the bonding unit, and the discharge unit;
- and
- a determination unit configured to determine whether there is an image in a region of a front cover of a booklet or a rear cover of a booklet that is to be heated and pressurized by the bonding unit,
- wherein the forming unit generates a sheet bundle consisting of N sheets including an M-th sheet to be included in a k-th booklet and a first sheet to be included in a (k+1)th booklet,
- wherein the bonding unit bonds a preceding sheet and a subsequent sheet stacked on the stacking unit, excluding the M-th sheet to be included in the k-th booklet and the first sheet to be included in the (k+1)th booklet, and
- wherein the control unit counts a number i of sheets layered at the forming unit,
- wherein in a case where the determination unit determines that there is no image in a region of a front cover of the (k+1)th booklet or a rear cover of the k-th booklet that is to be heated and pressurized by the bonding unit, if i reaches N, the control unit causes the conveyance unit to convey the sheet bundle from the forming unit to the stacking unit, and
- wherein in a case where the determination unit determines that there is an image in the region of the front cover of the (k+1)th booklet or the rear cover of the k-th booklet that is to be heated and pressurized by the bonding unit, even if i is less than N, the control unit causes the conveyance unit to convey the sheet bundle without including a sheet to be included in the (k+1)th booklet from the forming unit to the stacking unit.
14 more elements
Dependencies are inferred from the claim text.